B.Sc.A. 1983 University of Saskatchewan.
Ph.D. 1988 UC, Berkeley.
My current research interests are in the following areas:
Effect of Forest Management and Climate on the C-balance of sub-Boreal forests.
I have many on-going projects exploring the ways in which past, current and future
forest management as well as climate and environment can influence carbon storage in sub-Boreal and boreal landscapes.
My lab utilizes soil, leaf, ecosystem (chamber, Bowen-ratio, Eddy flux) level gas-exchange
to determine fluxes of CO2, dendrochemistry (e.g. stable isotopes) and dendrochronology, as well as standardized protocols and methods for assessment and modeling of carbon stocks.
Impacts of Forest Management and Stand Attributes on Forest Diversity and Ecosystem Function.
This work is attempting to understand the way in which forest management influences forest
diversity, and in turn the ecosystem consequences of this diversity and its alterations. Much of this work recently has related to lichen and non-vascular plant importance to sub-boreal forests. The lichen and NV-plant floristics change significantly across the landscape, and from clearcut to old-growth. My lab has recently been using stable isotopes and specifically, the natural abundance of 15N to determine the significane of cyanolichens such Lobaria pulmonaria in the N balance of sub-boreal forests.
Sustainability at Canada's "Green University".
I strongly believe that Universities should lead the way in all aspects of sustainability - research, teaching, outreach, and operations. While my overall research record has long addressed sustainability issues in natural ecosystems, I now serve on UNBC's Green University Committee and have begun to foster research projects that address our built-systems.
Recent Publications
Bruzzese BM, Bowler R, Massicotte HB, AL Fredeen. 2010. Photosynthetic light-response in three carnivorous plant species: Drosera rotundifolia, D. capensis and Sarracenia leucophylla. Photosynthetica 48(1): 103-109.
Smyth D, Fredeen AL, A Booth. 2010. Reducing solid waste in higher education: the first step towards 'greening' a university campus. Resources, Conservation and Recycling. 54: 1007-1016.
Campbell J, Bradfield GE, Prescott CE, AL Fredeen. 2010. The influence of overstorey Populus on epiphytic lichens in subboreal spruce forests of British Columbia. Canadian Journal of Forest Research. 40: 143-154.
Brown M, Black TA, Nesic Z, Egginton V, Spittlehouse DL, Fredeen AL, Grant NJ, Burton P, JA Trofymow 2010. Impact of the mountain pine beetle attack on the carbon balance of lodgepole pine stands in British Columbia. Agricultural and Forest Meteorology. 150: 254-264.
Carson AW, Rea RV, AL Fredeen 2009. Compensatory shoot growth in trembling aspen (Populus tremuloides Michx.) in response to simulated moose browsing. Alces 45: 101-108.
Bois CH, Janzen DT, Sanborn PT, AL Fredeen 2009. Contrasting total carbon socks between ecological site series in a sub-boreal spruce research forest in central British Columbia. Canadian Journal of Forest Research. 39(5): 897–907.
Botting RS, Campbell J, AL Fredeen 2008. Contrasting arboreal and terrestrial macrolichen and bryophyte communities in old-growth sub-boreal spruce forests of central British Columbia. The Bryologist 111(4): 607-619.
Campbell J, AL Fredeen 2007. Contrasting the abundance, nitrogen and carbon of epiphytic macrolichen species between host trees and soil types in a sub-boreal forest. Canadian Journal of Botany 85: 31-42.
Carson AW, Rea RV, AL Fredeen 2007. Extent of stem dieback in trembling aspen (Populus tremuloides) as an indicator of time since simulated browsing. Journal of Range Management. 60: 543-547.
Fredeen AL, Waughtal JD, TG Pypker. 2007. When do replanted sub-boreal clearcuts become net sinks for CO2? Forest Ecology and Management 239: 210-216.
Janzen, DT, Fredeen AL, RD Wheate. 2006. Radiometric correction techniques and accuracy assessment for Landsat TM data in remote forested regions. Canadian Journal of Remote Sensing. 32(5): 330-340.
Botting RS, AL Fredeen 2006b. Net ecosystem CO2 exchange for moss and lichen dominated forest floors of old-growth sub-boreal spruce forests in central British Columbia, Canada. Forest Ecology and Management 235: 240-251.
Botting RS, AL Fredeen 2006a. Contrasting terrestrial moss, lichen and liverwort diversity and abundance between old-growth and young second-growth sub-boreal spruce forest in central British Columbia. Canadian Journal of Botany 84(1): 120-132.
Fredeen AL, Bois CH, Janzen DT, PT Sanborn 2005. Comparison of coniferous forest carbon stocks between old-growth and young second-growth forests on two soil types in central British Columbia, Canada. Canadian Journal of Forest Research 35: 1411-1421.
Fredeen AL, Hoekstra KT, RW Madill 2004. Primary longitudinal resin canals in lodgepole pine occur in Fibonacci numbers. Canadian Journal of Botany 82:1539-1544.
Campbell J, AL Fredeen 2004. Lobaria pulmonaria abundance as an indicator of macrolichen diversity in Interior Cedar hemlock forests of East-Central British Columbia. Canadian Journal of Botany 82:970-982.
Pypker TG, AL Fredeen 2003. CO2 fluxes from a chronosequence of clearcuts 1 to 10 years after harvest in sub-Boreal B.C. Forest Ecology and Management. 172:249-259
Fredeen AL, Horning JA, RW Madill 2002. Spiral phyllotaxis of needle-fascicles on branches and scales on cones in Pinus contorta Dougl. Ex Loud. var. latifolia Engelm.: Are they influenced by wood-grain spiral? Canadian Journal of Botany 80: 166-175.
Pypker TG, AL Fredeen 2002. The growing season carbon balance of a sub-boreal clearcut five years after harvesting using two independent approaches to measure ecosystem CO2 flux. Canadian Journal of Forest Research 32: 852-862.
Pypker TG, AL Fredeen 2002. The growing season carbon balance of a sub-boreal clearcut five and six years after harvesting. Agricultural and Forest Meteorology 114( 1): 15-30.
Current Courses:
Terrestrial plant ecology with an emphasis on higher plants over a range of spatial (sub-cellular events to global scale environment) and temporal (second to millenial) scales.
This M.Sc.-level course provides detailed information about how to make effective oral, poster and other types of presentations along with opportunities for graduate students to create and deliver as well as critique and evaluate presentations.
This is a new (2010) team-taught course that brings societal and environmental relevance to the disciplines of plant physiology (how plants function metabolically) and plant struction and anatomy. Labs are student driven.
This course is open to upper division students from the social and natural sciences wishing to explore how we might solve some of the most pressing environmental problems we're currently facing. We provide a common policy and science understanding and vocabulary to all students wanting to be play a positive role in our future sustainability.
This is a team-taught course that evaluates the various natural and anthropogenic global enironmental changes (past, present and potential) and how humans can respond to ensure a positive future for all life.
| Address: Dr. Art Fredeen, Professor Ecosystem Science and Management University of Northern British Columbia 3333 University Way Prince George, BC CANADA V2N 4Z9 |
Office:
8-237 (Teaching Laboratory Bldg) |
E-mail:
fredeena@unbc.ca |